From d021bf35c11232c64b734ad23f158177dd5d6748 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Gr=C3=A4=C3=9Flin?= <mgraesslin@kde.org>
Date: Thu, 21 Mar 2013 15:52:43 +0100
Subject: [PATCH] Skip framebuffer configs for depth 32 with no alpha

Fixes another problem on NVIDIA that RGBA windows were rendered
incorrectly.
---
 glxbackend.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/glxbackend.cpp b/glxbackend.cpp
index e062b5033d..407c014581 100644
--- a/glxbackend.cpp
+++ b/glxbackend.cpp
@@ -259,6 +259,9 @@ bool GlxBackend::initDrawableConfigs()
             if (buffer_size != depth && (buffer_size - alpha_size) != depth)
                 continue;
 
+            if (depth == 32 && alpha_size != 8)
+                continue;
+
             XVisualInfo *vi = glXGetVisualFromFBConfig(display(), configs[j]);
             if (vi == NULL)
                 continue;